import java.util.concurrent.atomic.AtomicInteger;

public class Demo8 {
    //一个静态的原子整数变量count，并初始化为0
    static AtomicInteger count = new AtomicInteger(0);
    public static void main(String[] args) throws InterruptedException {
        Thread t1 = new Thread(()->{
            for (int i = 0; i < 5000; i++) {
                //count++
                count.getAndIncrement();
                //++count
                //count.incrementAndGet();
                //count += 10;
                //count.addAndGet(10)
            }
        });
        Thread t2 = new Thread(()->{
            for (int i = 0; i < 5000; i++) {
                count.getAndIncrement();
            }
        });
        t1.start();
        t2.start();
        Thread.sleep(1000);
        t1.join();
        t2.join();
        System.out.println(count);
    }

}
